diff -r b758351d191f -r cc9b7e14412b web/lib/django/contrib/localflavor/us/forms.py
--- a/web/lib/django/contrib/localflavor/us/forms.py	Wed May 19 17:43:59 2010 +0200
+++ b/web/lib/django/contrib/localflavor/us/forms.py	Tue May 25 02:43:45 2010 +0200
@@ -2,8 +2,9 @@
 USA-specific Form helpers
 """
 
+from django.core.validators import EMPTY_VALUES
 from django.forms import ValidationError
-from django.forms.fields import Field, RegexField, Select, EMPTY_VALUES
+from django.forms.fields import Field, RegexField, Select, CharField
 from django.utils.encoding import smart_unicode
 from django.utils.translation import ugettext_lazy as _
 import re
@@ -20,9 +21,9 @@
         super(USZipCodeField, self).__init__(r'^\d{5}(?:-\d{4})?$',
             max_length=None, min_length=None, *args, **kwargs)
 
-class USPhoneNumberField(Field):
+class USPhoneNumberField(CharField):
     default_error_messages = {
-        'invalid': u'Phone numbers must be in XXX-XXX-XXXX format.',
+        'invalid': _('Phone numbers must be in XXX-XXX-XXXX format.'),
     }
 
     def clean(self, value):
@@ -84,7 +85,7 @@
     abbreviation for the given state.
     """
     default_error_messages = {
-        'invalid': u'Enter a U.S. state or territory.',
+        'invalid': _('Enter a U.S. state or territory.'),
     }
 
     def clean(self, value):